package com.plusjun.common.valid;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.HashSet;
import java.util.Set;

/**
 * @ClassName ListValueConstraintValidator
 * @Description: 指定校验属性的类型
 *  实现 ConstraintValidator，泛型为：注解，指定的类型
 **/
public class ListValueConstraintValidator implements ConstraintValidator<ListValue,Integer> {
    private Set<Integer> set = new HashSet<>();

    /**
     *  初始化方法
     * @param constraintAnnotation
     */
    @Override
    public void initialize(ListValue constraintAnnotation) {
        int[] vals = constraintAnnotation.vals();
        for(int val : vals) {
            set.add(val);
        }
    }

    /**
     *  判断是否校验成功
     * @param value :需要校验的值
     * @param context
     * @return
     */
    @Override
    public boolean isValid(Integer value, ConstraintValidatorContext context) {
        return set.contains(value);
    }
}
